| OLD | NEW |
| 1 /* | 1 /* |
| 2 * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. |
| 3 * | 3 * |
| 4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
| 5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
| 6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
| 7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
| 8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
| 9 */ | 9 */ |
| 10 | 10 |
| 11 #include "webrtc/modules/audio_coding/codecs/isac/fix/source/pitch_estimator.h" | 11 #include "webrtc/modules/audio_coding/codecs/isac/fix/source/pitch_estimator.h" |
| 12 #include "webrtc/common_audio/signal_processing/include/signal_processing_librar
y.h" | 12 #include "webrtc/common_audio/signal_processing/include/signal_processing_librar
y.h" |
| 13 #include "webrtc/system_wrappers/include/compile_assert_c.h" | 13 #include "webrtc/base/compile_assert_c.h" |
| 14 | 14 |
| 15 /* log2[0.2, 0.5, 0.98] in Q8 */ | 15 /* log2[0.2, 0.5, 0.98] in Q8 */ |
| 16 static const int16_t kLogLagWinQ8[3] = { | 16 static const int16_t kLogLagWinQ8[3] = { |
| 17 -594, -256, -7 | 17 -594, -256, -7 |
| 18 }; | 18 }; |
| 19 | 19 |
| 20 /* [1 -0.75 0.25] in Q12 */ | 20 /* [1 -0.75 0.25] in Q12 */ |
| 21 static const int16_t kACoefQ12[3] = { | 21 static const int16_t kACoefQ12[3] = { |
| 22 4096, -3072, 1024 | 22 4096, -3072, 1024 |
| 23 }; | 23 }; |
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| 426 | 426 |
| 427 /* lookahead pitch filtering for masking analysis */ | 427 /* lookahead pitch filtering for masking analysis */ |
| 428 WebRtcIsacfix_PitchFilter(inbufQ0, outQ0, &(State->PFstr), PitchLags_Q7,PitchG
ains_Q12, 2); | 428 WebRtcIsacfix_PitchFilter(inbufQ0, outQ0, &(State->PFstr), PitchLags_Q7,PitchG
ains_Q12, 2); |
| 429 | 429 |
| 430 | 430 |
| 431 /* store last part of input */ | 431 /* store last part of input */ |
| 432 for (k = 0; k < QLOOKAHEAD; k++) { | 432 for (k = 0; k < QLOOKAHEAD; k++) { |
| 433 State->inbuf[k] = inbufQ0[k + PITCH_FRAME_LEN]; | 433 State->inbuf[k] = inbufQ0[k + PITCH_FRAME_LEN]; |
| 434 } | 434 } |
| 435 } | 435 } |
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